%YAML 1.2
---
!!map {
    ? !!str "Mark McGwire"
    : !!map {
        ? !!str "hr"
        : !!str "65", 
        ? !!str "avg"
        : !!str "0.278"
        },
    ? !!str "Sammy Sosa"
    :  !!map {
        ? !!str "hr"
        : !!str "63",
        ? !!str "avg"
        : !!str "0.288"
        }
    }
